swift@5.10: Fix install script

[niheaven]

• Wait for next version of Scoop when these are released (currently in develop branch): https://github.com/ScoopInstaller/Scoop/pull/5871 and #5552

• [x] I have read the Contributing Guide.

[github-actions[bot]]

All changes look good.

Wait for review from human collaborators.

swift

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate